MeshID = D014246

Trichomoniasis, sometimes referred to as "trich", is a common sexually transmitted disease (STD). It is caused by the single-celled protozoan parasite "Trichomonas vaginalis". Trichomoniasis is primarily an infection of the genitourinary tract; the most common site of infection is the urethra and the vagina in women. It is most common in women and uncircumcised men. For uncircumcised men, the most common site for the infection is the tip of the penis.


Typically, only women experience symptoms associated with "Trichomonas" infection.

Symptoms include::*Vaginitis - itching, burning, and inflammation of the vagina:*Cervicitis - inflammation of the cervix:*Urethritis - inflammation of the urethra:*Green/Yellow, frothy vaginal discharge

Most men with trichomoniasis do not have signs or symptoms; however, some men may temporarily have an irritation inside the penis, mild discharge, or slight burning after urination or ejaculation.

Some women have signs or symptoms of infection which include a frothy, yellow-green vaginal discharge with a strong odor. The infection also may cause discomfort during intercourse and urination, as well as irritation and itching of the female genital area. In rare cases, lower abdominal pain can occur. Symptoms usually appear in women within 5 to 28 days of exposure.


Trichomoniasis is diagnosed by visually observing the trichomonads via a microscope. In women, the doctor collects the specimen during a pelvic examination by inserting a speculum into the vagina and then using a cotton-tipped applicator to collect the sample. The sample is then placed onto a microscopic slide and sent to a laboratory to be analyzed. An examination in the presence of trichomoniasis may also reveal small red ulcerations on the vaginal wall or cervix; if occuring on the cervix, is termed "strawberry cervix."

Genetic sequence

A draft sequence of the Trichomoniasis genome was published on January 12, 2007 in the journal "Science" confirming that the genome has at least 26,000 genes, a similar number to the human genome. [ [] Scientists crack the genome of the parasite causing trichomoniasis. Jan. 12, 2007.]


Treatment for both pregnant and non-pregnant patients utilizes metronidazole (Flagyl) 500mg oral 2-3 times per day for 7-10 days. Sexual partners, even if asymptomatic, should be concurrently treated.Fact|date=September 2008


Research has shown a link between trichomoniasis and two serious sequelæ. Data suggest that:
* Trichomoniasis is associated with increased risk of transmission of HIV.
* Trichomoniasis may cause a woman to deliver a low-birth-weight or premature infant.

Additional research is needed to fully explore these relationships.

Prevalence and prevention

The American Social Health Association estimates trichomoniasis affects 7.4 million previously unaffected Americans each year and is the most frequently presenting new infection of the common sexually transmitted diseases. [Associated Press, [ Abstinence students still having sex] , MSNBC, April 16 2007. Retrieved March 12 2008.]

Use of male condoms may help prevent the spread of trichomoniasis, [ [ Vaginitis/Trichomoniasis :Reduce your risk] , American Social Health Association. Retrieved March 12 2008.] although careful studies have never been done that focus on how to prevent this infection. Refraining from sharing swimsuits or towels may also help as trichomonads survive for up to 45 minutes outside of the body.Fact|date=March 2008 Treatment is usually Metronidazole. [ [ Vaginitis/Trichomoniasis :Treatment for trichomoniasis] , American Social Health Association. Retrieved March 12 2008.]


External links

* [ Trichomoniasis at Centers for Disease Control and Prevention]
* [ Vaginitis/Vaginal infection fact sheet from the National Institute of Allergies and Infections] . The first version of this article was taken from this public domain resource.
* [ eMedicine Health Trichomoniasis]

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Look at other dictionaries:

  • trichomoniasis — Infección vaginal causada por el protozoo Trichomonas vaginalis, caracterizada por picor, quemazón y exudado vaginal maloliente, espumoso, de color amarillo pálido a verde. En los hombres, la infección habitualmente es asintomática, pero se puede …   Diccionario médico

  • Trichomoniasis —   die, / oder ... asen, durch Flagellaten der Art Trichomonas vaginalis hervorgerufene, v. a. beim Geschlechtsverkehr übertragene Infektionskrankheit, die zu einer Entzündung der Schleimhäute des Urogenitaltrakts führt; bei Frauen kommt es… …   Universal-Lexikon

  • trichomoniasis — 1915, from tricho , Mod.L. form of Gk. trikho , comb. form of thrix (gen. trikhos) “hair” + monas + iasis. Coined 1836 in French …   Etymology dictionary

  • trichomoniasis — [trik΄ōmō nī′ə sis] n. [ModL < Trichomonas (see TRICHOMONAD) + IASIS] infestation with trichomonads; esp., a) a vaginitis in women caused by a trichomonad (Trichomonas vaginalis) and characterized by a heavy discharge b) a disease of cows… …   English World dictionary

  • Trichomoniasis — Lebenszyklus Trichomonas vaginalis Trichomoniasis ist eine sexuell übertragbare Erkrankung, die bei Frau und Mann auftritt und von einem Geißeltierchen, Trichomonas vaginalis ausgeht. Dabei entzünden sich die Scheide und die männliche Harnröhre.… …   Deutsch Wikipedia

  • trichomoniasis — /trik euh meuh nuy euh sis/, n. Pathol. 1. a sexually transmitted disease typically asymptomatic in men and resulting in vaginitis with a copious, frothy discharge and itching in women, caused by a trichomonad Trichomonas vaginalis. 2. any of… …   Universalium

  • trichomoniasis — noun (plural trichomoniases) Etymology: New Latin, from Trichomonas + iasis Date: 1915 infection with or disease caused by trichomonads: as a. a human sexually transmitted disease occurring especially as vaginitis with a persistent discharge and… …   New Collegiate Dictionary

  • trichomoniasis — (trik o mo ni ah sis) A sexually transmitted disease caused by the parasitic protozoan Trichomonas vaginalis …   Dictionary of microbiology

  • trichomoniasis — noun A common sexually transmitted disease caused by the parasite Trichomonas vaginalis and infecting the urinary tract or vagina. Syn: ping pong disease, trich …   Wiktionary

  • trichomoniasis — Disease caused by infection with a species of protozoon of the genus Trichomonas or related genera. t. vaginitis acute vaginitis or urethritis caused by infection with …   Medical dictionary

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